Floor-dressing machine.



Patented Dec.28 ,1909.

3 BHEBT88HBET 1.

1m lllll W. S. HAVEN. FLOOR DRESSING MACHINE.

AIPLIGATION FILED FEB. 21, 1908.

Patented D... 28, 1909.

3 SHEETS-SHEET 2.

E'Muewlioz Q Vi #11 Mac:

ANDREW. a. GRAHAM co. Pnum-umoamrnus. WASHING'XUN. u. 2.

Patented Dec. 28, 1909.

3 SHEETS-SHEET 3.

Witnzooeo WALTER S. HAVEN, OF RACINE, WISCONSIN.

FLOOR-DRESSING MACHINE.

Specification of Letters Patent.

Patented Dec. 28, 1909.

Application filed February 21, 1908. Serial No. 417,196.

To all whom it may concern:

Be it known that I, WALTER S. HAVEN, a citizen of the United States,residing at Racine, Racine county, lVisconsin, have invented certain newand useful Improvements in Floor-Dressing Machines; and I do herebydeclare the following to be a full, clear, and exact description of theinvention such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to certain improve ments in floor dressingmachines, and the like; and the objects and nature of my invention willbe readily understood by those skilled in the art in the light of thefollowing explanation of the structures shown in the accompanyingdrawings illustrating embodiments of my invention for purposes ofexplanation from among other forms, constructions and arrangementswithin the spirit and scope of my invention.

An object of my invention is to provide certain improvements in detailsand construction of parts, and in combinations, whereby a highlyefiicient floor dressing machine will be produced.

My invention consists in certain novel features in construction and incombinations or arrangements of parts as more fully and particularlypointed out and set forth hereinafter.

Referring to the accompanying drawings:Figure l, is a perspective viewillustrating a floor dressing machine constructed in accordance with myinvention. Fig. 2, is a partial longitudinal view of the machine ofFig. 1. Fig. 8, is a section on an enlarged scale of the tool or bladeholder of Figs. 1 and 2, showing the front end of the lever. Fig. 4, isa detail perspective showing a modified arrangement wherein a slidingcarriage is employed and the tracks therefore are adjustably secured toa bowling alley floor. Fig. 5, is a perspective view showing thecarriage reciprocating and traveling on the floor and moving along andheld down by tracks secured to the floor. Fig. 6, is a perspectiveshowing tracks for the carriage resting on the floor, and adjustablealong and held down by strips or planks temporarily secured to thefloor.

The various structures illustrated embody a reciprocating carriagecarrying and constituting the fulcrum for a vertically swingable hand orother lever carrying the floor dressing tool and also a stop to limitthe oscillation of said lever and the working depth of the tool; tracksbeing usually pro vided to hold said carriage to reciprocation in acertain plane approximately parallel with the surface of the fioor beingdressed, said tracks being detachably or removably held in place.

In the machine shown by Fig. 1, I provide a frame resting 011 the floorand movable along the floor to present a fresh or undressed area thereoffor the action of the dressing tool. This frame is formed to be held tothe floor, during the action of the tool, by the weight thereof,supplemented, if need be, by the weight of the operator or by thepressure of his foot. This frame embodies two pairs of parallelelongated rigid tracks 1, arranged longitudinally of the frame, usuallyforming the opposite side bars thereof. These side bars or tracks aresuitably and rigidly tied or fixed together at the frame ends bysuitable cross connections or bars. For instance, at the front of theframe, I show the track bars 1, rigidly secured to front corner posts,legs or uprights 2, at their lower ends provided with and carryingrollers or wheels 3, resting on the floor and at their upper endssecured to and carrying a transverse heavy bar or weight 4:, designed toweight the front end of the frame and hold the same down in properpositionduring the operation of the dressing tool.

At the rear end of the frame I show a rigid cross bar 5, between andfixed to the side bars, and depending corner legs 6, fixed thereto andsecured to and carrying a hori- Zontal transverse foot, running board orpiece 7, extending transversely across and to the rear of the frame.This board 7, rests with its fiat face on the floor, and the operatorcan stand thereon or place one foot thereon to hold the frame down onthe floor during the operation of the tool, should not the weight of theframe and said board be sufficient to hold the frame stationary whilethe machine is at work. When the area of the floor accessible to thetool has been dressed, the frame can be easily moved to a differentportion of the floor by lifting the rear end of the frame and moving theframe with its weight thrown onto and supported by the rollers 3, whichwill readily roll along the floor.

The reciprocating carriage is confined to movement along the tracks 1,and can either slide along or can be provided with rollers traveling onsaid tracks. In the form shown in Fig. 1, the carriage consists of twotransverse parallel separated or spaced rigid horizontal cross rods 8,9, in length approximately equal to the width of the frame and at theirends rigidly connected by the side bars 10, and the carriage thus formedis provided with wheels or rollers 11, confined be tween the tracks 1,of each pair; if so desired, two rollers being arranged at each end ofthe carriage, to maintain the cross rods or shafts thereof one behindthe other and to travel in the same plane. This carriage is free toreciprocate in a fixed plane, longitudinally of the frame andapproximately throughout the length of the track way.

The carriage is reciprocated through the medium of rearwardly extendinglever 12, provided with a suitable handle device 13, at its usuallyelevated rear free end, said handle device being accessible to theoperator at the rear of the machine with one or both feet on the footboard 7. The lever extends forwardly about horizontally beneath thecross rods 8, 9, of the carriage and usually projects in advance of thefront rod 9.

The lever is hung from the fulcrum rod 9, to oscillate vertically,through the medium of a sleeve 14:, mounted and free to turn on said rodand rigid with a vertical depending hanger 15, at its lower end rigidlysecured or fixed to the front portion of the lever to uphold the same.This sleeve 14, is not only free to oscillate on the fulcrum rod orshaft but is free to laterally reciprocate or slide throughout thelength thereof between the trackways to carry the tool lever 12, tooperation in any desired floor area between said track ways. The frontend of said tool lever is shown projecting forwardly from the lower endof said supporting hanger, and can be formed with a longitudinal socketopening through its front end to longitudinally and removably receivethe shank 16, of the tool holder, clamp, or chuck generally indicated bythe reference letter 17, by which the downwardly extending, usuallyinclined, cutting or scraping blade 18, or other tool, is secured andheld.

In the specific example illustrated, the tool holder is capable ofadjustment longitudinally of the actuating tool lever, and is fixed tothe lever and held in the desired adjustment by suitable means, such asclamping or set screw 19. It will hence be observed that the tool isarranged in advance of the fulcrum of the lever, and that the operatordraws the carriage back and forth by the lever, he can by raising thehandle or rear end of the lever, depress the tool and apply the desiredpressure thereto, which he does on the operative stroke, while bydepressing the handle end of the lever on the return stroke he raisesthe tool from the floor.

For the purpose of steadying, stiffening or bracing the lever on itsoperative stroke and also to limit the working depth of the tool, thestop rod 8, is employed to cooperate with an intermediate portion of thelever between the fulcrum and handle end. In the specific exampleillustrated, I show the lever passing under said stop rod so thatitsvertical movement is limited thereby but I do not wish to so limit myinvention. If so desired, adjustable means can be employed to vary thehorizontal plane in which said stop rod limits the upward swing of thelever. For instance, I show an enlargement or lug 20, rigid with thelever beneath the stop rod 8, and having a vertical, internallythreaded, socket receiving an upwardly projecting vertically adjustablescrew 21, forming the engagement contact or stop to abut against thestop rod. By adjusting this screw vertically the limit of downwardmovement of the front end of the lever and the working depth of the toolcan be varied. By this arrangement the working depth of the tool can bevery accurately controlled to uniformly remove the fioor surface to thedesired depth, and furthermore gouging of the floor is prevented andalso the blade is held to work in a fixed horizontal plane and againstdropping into hollows, depressions or cracks in the floor surface.During the operative strokes of the carriage, the tool is held firmly inits plane of movement and the actuating tool lever is firmly held andbraced against undue vibration and chattering by its bearing against thestop rod 8, in connection with its support from the fulcrum rod or shaft9. I also, preferably, provide means whereby the actuating tool levercan be oscillated laterally in a horizontal plane to horizontally shiftthe blade in its horizontal working plane. The blade normally works withthe lower transverse cutting or scraping edge arranged directly acrossor at right angles to its path of movement. It is often desirable toarrange the blade with its cutting edge at an angle or inclination tothe path of forward movement of the blade. The grain or nature of someportions of the flooring is often such that the best dressing resultscan be attained where the tool works over the same at an angle to make adraw cut. To attain this result, I can form the hanger 15, in twosections arranged end to end and united by a vertical pivot 22, to forma swivel connection between the lever 12, and fulcrum sleeve 14. Thisswivel is so formed that the lever is free to oscillate, rock or rotatethereon in a horizontal plane to vary the angle of the blade in ahorizontal plane, but so that there is no substantial vertical movementor play at the swivel joint. The actuating tool lever is held againstsubstantial vertical movement so far as the swivel is concerned, assubstantial vertical play of the lever is permitted only by the fulcrumsleeve turning on the fulcrum shaft or rod 9.

The blade 18 is preferably removably secured in the holder 17, to permitready removal and interchange of blades. Any suitable clamp or chuck canbe employed for this purpose. For instance, I show set or clamping screw24, for securing the blade in the holder and between the cushioning pads23. Also to reduce vibration and chattering to the minimum, I usuallyclamp or secure the blade in the holder against a body of cushioningmaterial or between two layers or bodies 23, of cushioning material,such as rubber or the like, to absorb or take up the vibration of theblade and prevent transmis- Tion thereof to the holder and actuatingtool ever.

Although I do not wish to so limit all features of my invention, yet Ican adjustably connect the blade holder to its shank 16, so that theangle of forward and downward inclination of the blade can be varied.For instance, in Fig. 3, I show the holder provided with a rigidrearwardly extending ear 25, lapping the front end of the shank 16, andcoupled thereto by a transverse clamping bolt 26, on which the holdercan be rocked vertically when the bolt is loosened.

When the holder has been adjusted to the desired angle, the bolt istightened to rigidly clamp the holder to the shank and in the desiredadjustment.

Various means, or other than a weightheld, shiftable frame, can beemployed to hold the carriage to reciprocation in a certain plane overthe floor surface. For instance, I show different arrangements for thispurpose, from among many others, in Figs. 4, 5, and 6, wherein I showpractically the same structure of reciprocating carriage and actuatingtool lever as in Fig. 1, except that the tool holder adjustment 25, 26is not shown, for to a certain extent the result thereof can be attainedthrough the medium of screw 21, and by adjusting the blade to project agreater or less distance below the holder.

In Fig. 4, I show the reciprocating carriage and its actuating toollever traveling along and confined to a frame particularly adapted forbowling alleys, and comprising parallel tracks 27, having end legs withlateral end feet 28 by which the frame can be detachably held down toand parallel with a bowling alley fioor with tracks the desired distanceabove the floor. I show the frame held in place by a clamp arrangedtransversely of the floor and resting down on feet 28, and having endjaws 30, 30, engaging the side edges of the floor and detachably lockingthe clamp in place. The operation of this bowling alley floor dresserwill be readily understood by those skilled in the art.

In Fig. 5, I show the reciprocating earriage provided with and carriedby enlarged wheels 31, usually having wood rims or fitted with rubbertires. These wheels are adapted to travel and roll on the surface of thefloor,

while the carriage is held to movement in a certain plane parallel withthe floor by elevated parallel tracks 32, provided with upright bracketsor feet 33, resting on and temporarily secured to the floor by screws34, or other suitable means.

In Fig. 6, I show a frame having the elevated opposite parallel slide ortrack ways 35, for the reciprocating carriage. This frame is held downto the floor by parallel strips or bars 38, temporarily secured alongthe floor by screws 39 or other means passed down through said bars andthrough blocks 40, by which the bars are held up from the floor asuflicient distance to permit the feet 37 of the frame legs to projectunder the bars so that the feet will be held down to and yet can slidealong the floor beneath the bars when the frame is being shifted. Thefeet can be provided with vertically movable set screws 41, extendingtherethrough to engage the bars 38, and lift the feet into lockingengagement with the bars 38, should it be necessary to clamp or look theframe in position.

Various means can be provided for so mounting or carrying thecarriage-actuating and tool-controlling lever on or from its elongatedfulcrum bar or support 9, as to permit horizontal rocking or oscillationof said lever independently of said fulcrum support 9 and of thecarriage. In the spe cific example illustrated, the swivel joint orconnection in the hanger 15, comprises the vertical pivot connection 22,between the sections 15, of the hanger which sections are rigid with thefulcrum sleeve 14, and with the lever 12, respectively, and I show saidpivot 22, consisting of a straight externally threaded rod or pipesection screwing longitudinally into the hanger sections 15, which areshown in the form of T-pipe joints or unions, although I do not wish toso limit my invention as various forms of swivel or pivot connectionscan be employed.

The slight horizontal oscillation or rocking of the lever necessary tochange the working angle of the blade, is permitted by the screwthreaded connection between section 22, and one or both sections 15, ofthe hanger, without substantial or objectionable vertical variation inthe position of the lever.

The arrangement is generally such that the return or inoperative strokeof the floor dressing tool, is the forward stroke when the truck and thetool are moving in a direction away from the operator, while during theoperative stroke the truck and the tool are being drawn backward ortoward the operator.

In order to enable the operator to make a full operative stroke ofmaximum length without being required to step back from the frame andfrom the footboard 7, I form the rear end of the lever 12, withbranching, divided or separated rearwardly extending handles 13, one foreach hand, and so spaced apart as to receive the body of the operatorbetween them. By this arrangement the operator can move the lever andthe truck forward to the limit of the forward or return stroke and canthen draw the parts back on the operative stroke and can finish saidstroke with his hands moving back on opposite sides of the body to aposition in rear of the body, with said sepa rated handle ends extendingrearwardly on opposite sides of the body and beyond the same. This is afeature of material advantage in devices of this character.

I do not wish to limit all features of my invention to the use of thecarriage in connection with tracks for in some instances the weight ofthe carriage might be sufficient to hold the same down to work on thefioor, although as at present advised I consider the tracks an importantfeature, but do not wish to limit all features of my invention to a toolcarrying lever operated manually or by hand.

It is evident that various changes and modifications might be resortedto, elements might be added and others omitted, without departing fromthe spirit and scope of my invention and hence I do not wish to limitmyself to the structures as shown.

hat I claim is z- 1. In combination, tracks adapted to be maintained infixed approximate parallelism with a floor, a movable carriage adaptedto reciprocate longitudinally of said tracks, a vertically swingabletool actuating lever carried by and fulcrumed to said carriage, a toolhead connected with said lever, and a stop mechanism for said lever forlimiting the working movement of the tool toward the floor surface.

2. In combination, a movable carriage adapted to reciprocate over afioor and in a fixed plane parallel therewith, means determining theplane of reciprocation of said carriage, said carriage comprising afulcrum shaft or rod and a stop rod spaced therefrom, and a verticallyswingable lever having means to carry and control a floor dressing tool,said lever being fulcrumed to said fulcrum rod to swing verticallytherefrom as a center, said stop rod limiting the vertical swing of saidlever in a direction to limit the working movement of the tool towardthe floor surface.

3. A movable carriage adapted to reciprocate over a floor and in a planeparallel with the surface thereof, and means determining the plane ofreciprocation of said carriage in combination with a verticallyswingable lever for actuating said carriage, a floor dressing toolcarried and controlled by said lever, said lever fulcrumed to andcarried by said carriage to swing vertically independently thereof tomove said tool to and from the floor surface, and means for limiting thevertical swing of the lever.

4. In combination, a track way adapted to be temporarily fixed above andparallel with a floor surface, a movable carriage adapted to reciprocatelongitudinally of said track way, a lever fulcrumed to said carriage toreciprocate the same and to swing vertically independently thereof, thefront end of said lever provided with means for receiving a floordressing tool, and adjustable stop means whereby the limit of verticalswing of said lever in one direction can be varied, said stop meansbeing spaced a distance from the fulcrum point of the lever.

5. In combination, a movable carriage, a trackway adapted to maintainsaid carriage down to reciprocation in a fixed horizontal plane, avertically swingable lever fulcrumed between its ends to the forwardportion of said carriage and at its lower free front end having means toreceive, carry and raise and lower a fioor dressing tool, a portion ofthe rear part of said carriage arranged to engage the portion of thelever in rear of said fulcrum and thereby limit the upward swingthereof.

6. In combination, a movable carriage, a vertically swingable carriageactuating and tool controlling lever extending forwardly beneath saidcarriage and provided with an upright support hung loosely on saidcarriage to form the fulcrum of said lever, the forward free end of saidlever provided with means to receive a fioor dressing tool, the swing ofsaid lever in a direction to force the tool into working engagement withthe fioor being limited by engagement with a portion of the carriage.

7. In combination, a movable carriage, a vertically swingable carriagereciprocating lever at its free front end adapted to receive and carry afloor dressing tool, means whereby said lever is fulcrumed to saidcarriage to swing vertically, and means whereby said lever can oscillatehorizontally to vary the horizontal position of the working edge of theblade with respect to the floor.

8. A floor dressing machine comprising a reciprocatory carriage, and atool-controlling lever fulcrumed thereto to swing vertically and at itsfree end adapted to receive a floor dressing blade carrier, and meanswhereby said lever can be oscillated horizontally independently of thecarriage to vary the horizontal angle of the blade.

9. A floor dressing machine comprising a reciprocatory carriage, ahanger carried thereby and loosely coupled thereto to swing verticallyand comprising a swivel connection to permit oscillation on a verticalaxis only, and a tool controlling lever carried by said hanger andprovided with a floor dressing tool. 0

10. A floor dressing machlne comprlslng a reciprocatory carriage, meansdetermining the plane of reciprocation thereof a carriage-reciprocatingand tool-carrying lever fulcrumed to the carriage, a tool holder carriedby said lever and adapted to receive and secure a floor dressing tool,and adjust able means whereby the swing of the lever and workingmovement of the tool holder toward the floor surface can be varied.

11. A floor dressing machine comprising a movable carriage, meansdetermining the plane of movement of said carriage over the floor, anactuating hand lever fulcrumed thereto and carried thereby, a toolholder carried by said lever, a tool blade secured therein, and elasticcushioning material in said holder to back or pad said blade.

12. A floor dressing machine comprising a frame adapted to rest on thefloor and comprising a track way, said frame having aweight at one endand a foot piece at the opposite end, a reciprocating carriage movablealong said track way, and an actuating and tool carrying hand lever,fulcrumed to and carried by said carriage.

13. A floor dressing machine comprising a movable carriage having anelongated fulcrum support arranged transversely of the carriage, acarriage propelling vertically rockable lever provided with a tool andhaving a fulcrum mounted on said support to rock vertically and movelongitudinally thereof to shift the position of the tool laterally overthe floor without disturbing the lateral position of the carriage, and astop carried by said carriage for limiting the operative vertical swingof said lever.

14. A floor dressing machine comprising a movable carriage adapted toreciprocate over the floor surface to be dressed, a carriage propellinglever fulcrumed thereto, to rock vertically and provided with a floordressing tool, means whereby said lever can shift laterally with respectto and independently of the carriage, and means whereby said lever canoscillate horizontally independently of said carriage.

15. A floor dressing machine comprising a movable carriage, a verticallyrockable carriage propelling lever carried thereby and adapted toreceive and carry a floor dressing tool, and a fulcrum for said levercarried by and movable laterally in and independently of said carriageand provided with a supporting hanger coupled to said lever andcomprising a swivel connection permitting oscillation of the lever on avertical axis.

16. A floor dressing machine comprising a movable carriage, meansdetermining the plane of movement thereof and a carriage propellinglever at one end provided with a head for receiving a floor dressingtool, said lever extending forward beneath said carriage and coupled toa forward portion thereof, a rear portion of the carriage forming a stopfor an intermediate portion of said lever.

17. A floor dressing machine comprising a frame weighted at one end andadapted at the other end to receive the footof the operator, areciprocating carriage carried by said frame and confined toreciprocation in a predetermined plane, a tool head carried by saidcarriage, and means for reciprocating the carriage.

18. A floor dressing machine comprising a reciprocatory carriage, atrack-way adapted to maintain said carriage down to reciprocation in afixed plane along the floor, means for temporarily fixing said track-wayabove and parallel with a floor surface, a tool head movable with saidcarriage, head controlling track-way means oscillatory in a verticalplane and also oscillatory laterally to shift the position of the headhorizontally to vary the angle thereof with respect to the direction ofreciprocation of said carriage, and a stop for limiting the movement ofsaid head toward the floor surface.

19. A floor dressing machine comprising a reciprocatory carriage, meansadapted to be temporarily fixed over a surface to be dressed to maintainsaid carriage down to reciprocation in a fixed plane parallel with saidsurface, a vertically swingable hanger carried by said carriage andoscillatory on a substantially vertical axis, a tool head connected withsaid hanger, and controlling means.

20. A floor dressing machine comprising a frame adapted to be shiftedover the floor surface to be dressed and provided with a depressed footboard, a carriage carried by and adapted to reciprocate along saidframe, a lever carried by said carriage, and a tool head controlled bysaid lever.

21. A floor dressing machine comprising a movable carriage having alever whereby the same can be reciprocated over the surface to bedressed provided with a tool holder swingable from a vertical axis tovary the working angle or position of the tool with respect to the lineof reciprocation of said carriage.

22. A floor .dressing machine comprising a movable carriage, ahorizontally oscillatory lever carried by said carriage and providedwit-h a tool holder, and means whereby said lever can oscillatevertically to move said holder toward and from the floor, substantiallyas described.

23. A floor dressing machine comprising a movable carriage, a levermovable vertically on horizontal axis and movable horizontally on avertical axis and carried by said carriage and provided with a toolholder, and controlling mechanism.

2%. A floor dressing machine comprising a. carriage adapted toreciprocate over the surface to be dressed and provided with avertically and horizontally rockable lever having a tool holder, saidlever being bodily shiftable transversely of said carriage.

25. A floor dressing machine comprising a carriage adapted toreciprocate over the surface to be dressed and a lever movabletransversely of said carriage and swingable horizontally and providedwith and controlling a floor dressing tool.

26. A floor dressing machine comprising in combination, a carriageadapted to reciprocate over the surface to be dressed, and a carriagepropelling vertically roclrable hand lever swingable horizontally on asubstantially vertical axis and at its front end provided with andcontrolling a floor dress ing tool.

27. A floor dressing machine comprising in combination, a carriageadapted to reciprocate above the surface to be dressed, and acarriage-propelling-lever swingable on a substantially vertical axis andprovided with and controlling a tool holder.

28. A floor dressing machine comprising in combination, a carriageadapted to reciprocate over the surface to be dressed, a tool holderreciprocating therewith and movable horizontally independently thereofon a substantially vertical axis, and a carriage propelling handlecontrolling said tool holder, and whereby the same is moved horizontallyon said axis.

29. In a floor dressing machine, in com bination, a tool holderhorizontally movable on a substantially vertical axis, atoolholder-reciprocating and controllin handle, a frame having atrack-way and ac apted to be shifted over the floor, and movablecarrying-means upheld thereby, whereby the tool holder can be shiftedlaterally within the frame and whereby the same can be reciprocatedlongitudinally to perform its working strokes.

30. A frame having a track-way, in combination with a support movablealong said track-way, a member movable longitudi' nally of said support,a controlling and actuating handle, a floor-dressing tool-holderconnected with and controlled and reciprocated by said handle, and ahandle-carrying hanger from said member to said handle.

31. In a floor dressing machine, in combination, a frame having oppositeparallel track-ways, an axle extending between said track-ways andhaving means confined thereto and movable longitudinally thereof, aslide arranged on and movable longitudi nally of said axle, atoolholder-reciprocating and controlling-lever caried by said slide andin pivotal adjustable connection therewith to swing on a substantiallyvertical axis, and a tool holder connected with and controlled by saidlever.

32. In a floor dressing machine, in combination, a frame adapted to rest011 the floor, a support carried thereby and movable thereinindependently of the frame, a slide movable longitudinally of saidsupport, a tool holder horizontally movable on a substantially verticalaxis, and a tool-holder reciprocating and controlling-handle carried bysaid slide.

In a floor dressing machine, in com bination, a carriage, acarriage-reciprocating and tool-holder-controlling lever extending undersaid carriage, a tool holder connected therewith, and a swivel hangerbetween said lever and said carriage.

34. A floor dressing machine comprising in combination, a weighted frameprovided with a foot board extending beyond one end of the frame, areciprocatory tool-holder shiftable horizontally on a vertical axis,movable means carried by said frame and connected with said tool holder,and tool holder reciprocating and controlling means.

35. A floor dressing machine comprising in combination, a frame havingone end weighted and the opposite end provided with a floor engagingfoot piece, whereby the frame is held to the floor, the weighted end ofthe frame provided with rolling supports, a reciprocatory tool holder,movable means whereby the tool holder can be shifted transversely of theframe and can be reciprocated longitudinally thereof, and tool holderactuating and controlling means.

36. A floor dressing machine comprising in combination, a weighted frameprovided at one end with a depressed floor-engaging foot board, a floordressing tool holder mounted within the frame, movable means wherebysaid tool holder is adjustable laterally and reciprocatorylongitudinally of the frame, and tool holder actuating and controllingmeans.

37. A floor dressing machine comprising a frame having a track-way andweighted at one end and provided with a floor engaging foot piece at theother end, a support carried by the frame and movable along thetrack-way, and a handle provided with a tool holder and carried by saidsupport.

38. A floor dressing machine comprising a frame provided with adepressed floorengaging foot-piece to receive the foot of the operator,a reciprocatory handle provided with and controlling a tool holder, andmovable means carried by said frame and with which said handle isconnected and by which it is carried.

39. A floor dressing machine comprising in combination, a carriage, ahanger depending therefrom, a carriage-actuating handle extending underand hung from said carriage in pivotal connection by said hanger, a toolholder controlled by said han dle and a weighted frame adapted to beshifted along the floor to be dressed and maintaining said carriage tomovement above said floor in a plane substantially parallel therewith.

40. A floor dressing machine comprising in combination, a carriage, aframe adapted to hold the carriage to reciprocation in a certain planeover the floor surface, a carriage-propelling lever provided with afloor dressing tool. holder, said lever fulcrumed to said carriage toswing vertically, and a stop device between said lever and said carrieroperative during the working stroke and arranged a distance from saidfulcrum.

41. A floor dressing machine comprising a carriage, a floor dressingtool, a reciprocating truck actuating and tool controlling leverprovided with rearwardly projecting separated handle sections adapted toreceive between them the body of the operator during the completion of amaximum operative stroke toward the operator, and a track way for saidcarriage to hold the same to reciprocation in a certain plane over thefloor surface, substantially as described.

In testimony whereof I aflix my signature, in presence of two witnesses.

XVALTER S. HAVEN.

WVitnesses B. R. JONES, W. A. JACKSON.

